Apparatus for drawing off small quantities of molten glass from glass-furnaces.



PATENTED JUNE 30, 1908.

HA SEVE-RIN. APPARATUS FOR DRAWING OFF SMALL QUANTITIES 0F MOLTEN GLASS PROM GLASS FURNACES. APPLICATION FILED MAR. as, 1907.

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1720 12 for 7W6 were};

j U IT STATES Pn rE T OFFICE.

HEINRICH SEVERIN, or AOHERN, GERMANY.

APPARATUS FOR DRAWING OFF SMALL QUANTITIES F MOLTEN GLASS FROM GLASS- FURNACES.

Patented June 30, 1908.

To alt whom it may concern:

'ters'the receiver from the furnace and is pressed out from the receiver through an outwardly extending channel into the receiving mold or the like. By causing the pressure to cease or by producing an under pressure in the receiver the flowing out of the glass may be stopped. The intermediate receiver in order to be easily. taken out or substituted A suitable intermediate receiver and its associated parts is shown on the accompanyingrldrawing, in which 'gure .1 is a vertical section of a part of themelting furnace with a heating chamber I for the arrangement of the intermediate rep the furnace. Behind the wall f a b arranged, also consisting of a fireproof ma a special chamber 0, it may ceiver and its associate similar section of a struction. Referring to Fig. 1,. in the chamber 0 of the meltin furnace w a wallfof chamotte or any arts. Fig. 2 is .a mo ified form of conother fireproof material is put up which pre-' vents the molten glass from flowing out of ock a is terial, and which constitutes a receiver for the molten glasson its way from the furnace {at}; the blowing or pressing machine or the furnace itself. At the end of 'the chamber 0 is a wall which forms a discharge passa e-.

way it rom the furnace intermediate t e said latter wall andthe wall f to discharge the molten glass from said furnace through the medium of the receiver. that the molten glass passing from t e receiver a is continuously heated by the gases consists of a block rovided with a hollow receiving space and eing heated directly by the furnace gases.

Instead of arrangin the receiver in a. also be put into the It is ap arentin the furnace as said gases pass through the passageway d and act directly u on the molten glass discharged therethrougli. E

The receiver is 'open on the top for the inlet of the lass. From thebottom of the receiver a an 0 li ue channel extends upwardly rovided wit a turned down end e. In the ollow space I) of the receiver a, a plunger is arranged so as to be lifted or lowered. The

'rear wall "of the intermediate receiver is of such a hei ht or thus provided with an inlet opening that the glass may automatically fiow into the hollow space of the receiver.

The action'of this apparatus is as follows: If the plunger 0 is'sufliciently raised molten glass'flows into the hollow space band fills it up. By lowering the plunger the glass in the hollow space I) is pressed throu h the ascending channel (1 and the descending channel 6 into the receiving mold or the like placed under the mouth of channel e. By stopping the movement of the plungerc or by raising it again the flowing out of the glass is'interrupted. 7

The chamber 0 is in direct communication with the furnace so that the furnace gases play around all parts of the intermediate receiver and maintain them at the required temperature, so that the glass flows out of the channeled, e in a perfect liquid state.

- When working so-called pot furnaces .a

lunger is used which is lowered into the pot 1n order to cause regulated quantities of the glass to flow over a draw off pipe suitably arranged.

In the arrangement shown in Fig. 2 instead of a. plunger ca plunger o is arranged having a larger sectional area than the hollow space I) and being provided with a boreg connected to a ressure or suction pump (not shown). T e hollow s ace 6 of the intermediate receiver a being ffiled with glass the plunger 12 is lowered, until the spaces b and m are closed which latter is rovided at the lower end of the lunger. ompressed air bein introduced t rough bore 9 to the space I) t e glass contained therein is ressed out through the channels (1, e. If t e bore g is connected to a suction pump or the pres sure is ceased, the flowing out of the glass is interrupted.

The plunger shown in Fi 1 may also be provided with abor'e g an a hollow space m, if the glassis tobe' pressed outwards by means of. compressed air,

Having thus described my inventionl declare that what I claim and desire to secure by Letters Patent is 1. Means for removing glass from a glass furnace, comprising a removable intermediate receiver mounted in and immediately fed from the furnace and provided with an inlet for the material, a hollow s ace to receive the material and an outlet or the material, said receiver formed of a unitary structure and having its outlet positioned in the opening formed in the furnace for the introduction of the receivingrmolcl or the like to be filled, and a pressure device operating through the wall of the-furnace and adapted to close the inlet of the receiver and force the material from the receiver through the outlet of the latter.

2. Means for removing glass from a furnace-comprising an intermediate receiver fed from the furnace and provided with a hollow space and an outlet, a plunger sliding in the wall of the furnace for closing said hollow space, said plunger provided with a bore for pressing air into or drawing it off from the ollow space of the receiver.

3. Means for taking glass from a glass furnace com rising an intermediate receiver immediate y fed from the furnace and rovided with an inlet, a hollow space, am an outlet for the glass, a pressure and suction device consisting of a plunger suitably sliding in the wall of the furnace and closing the hollow space of the intermediate re ceiver and being providedvwith a bore for pressing air into or drawing it off from the ollow space ofthe intermediate receiver.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses. v,

HEINRICH SEVERIN. W itnesses; c

- SUsI PAX 

